EKG Test Senior Flashcards
what is the pacemaker of our heart; fire and sends impulses through both atriums
SA Node/Sinoatrial Node
what sends out electrical impulses down the bundle of his into the right and left branches through the purkinje fibers
AV Node/Atrioventricular Node
what sends out activity for ventricles to contract
Purkinje Fibers
1st bump, signals the beginning of the hear beat, responds to excitement over both atrius; Atrial Depolarization;ATRIAL ACTIVITY
P Wave
AV node to Bundle of his and into purkinje fibers; corresponds to invasion of ventricular muscles of exciteable implulses; Big blip; Ventricular Depolarization; VENTRICLE ACTIVITY
QRS WAVE
Relaxation of the heart
T Wave
Space between P and R
PR Interval
Viewing hear right at top;Horizontally
Lead 1
Cadicornered view of the heart from right arm to left foot
Lead 2
Oblique view of the heart from left arm to left leg
Lead 3
What foot is used only for a ground
Right
AVR
right arm
AVL
left arm
going straight acrossw from both arms to left foot
AVF
Fourth intercostal space between ribs on RIGHT of sternum
V1